公开(公告)号：US10020821B2

公开(公告)日：2018-07-10

申请号：US15035548

申请日：2014-11-13

Applicant: NIPPON HOSO KYOKAI

Inventor： Youichi Suzuki ,  Akinori Hashimoto ,  Shoji Tanaka ,  Kenichi Tsuchida ,  Takeshi Kimura ,  Yoshifumi Matsusaki

IPC: H03M13/11 ,  H04L1/00 ,  H03M13/00 ,  H03M13/25 ,  H03M13/03 ,  H03M13/27 ,  H03M13/29 ,  H03M13/15

CPC classification number: H03M13/1177 ,  H03M13/036 ,  H03M13/1102 ,  H03M13/1165 ,  H03M13/152 ,  H03M13/255 ,  H03M13/2792 ,  H03M13/2906 ,  H03M13/616 ,  H03M13/6356 ,  H04L1/00 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0071

Abstract: A transmission device and reception device for digital data that have excellent resistance to noise are provided. An encoder (11-1) of this disclosure, included in a transmission device (1) of this disclosure, applies LDPC encoding to digital data using a unique check matrix for each code rate by using a check matrix in which, taking a check matrix initial value table established in advance for each code rate at a code length of 44880 bits as initial values, 1 entries of a partial matrix corresponding to an information length appropriate for a code rate of 93/120 are allocated in the column direction over a cycle of 374 columns. A demodulator (23) of this disclosure, included in a reception device (2) of this disclosure, decodes digital data encoded by the encoder (11-1).